An RLC Circuit Is Connected Across an AC Power Source $\phi$

question 39

Multiple Choice

An RLC circuit is connected across an AC power source.Which statement is correct?​

• A)​The voltage across the inductor lags the current by 90°.
• B)​ The voltage across the capacitor is in phase with the current.
• C)​At resonance,the phase angle \(\phi\) between the current and the voltage is 0.
• D)​None of the above statements are correct.

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Definitions:

Cash Flows

The total amount of money being transferred in and out of a business, serving as a measure of its financial health.

Contribution Margin

The amount that one unit contributes to profit. It is defined as price minus marginal cost.

Fixed Costs

Expenses that do not change with the level of goods or services produced by a business, such as rent, salaries, or insurance premiums.

Break-Even Quantity

The amount you need to sell to at least break even (make zero profit). The formula (assuming that you can sell all you want at price and with constant marginal cost) is Q = F/(P - MC), where F is fixed costs, P is price, and MC is marginal cost.